Microchip Technology DM164134 Data Sheet
© 2006 Microchip Technology Inc.
DS41159E-page 269
PIC18FXX8
REGISTER 24-7:
CONFIG6L: CONFIGURATION REGISTER 6 LOW (BYTE ADDRESS 30000Ah)
REGISTER 24-8:
CONFIG6H: CONFIGURATION REGISTER 6 HIGH (BYTE ADDRESS 30000Bh)
U-0
U-0
U-0
U-0
R/P-1
R/P-1
R/P-1
R/P-1
—
—
—
—
WRT3
(1)
WRT2
(1)
WRT1
WRT0
bit 7
bit 0
bit 7-4
Unimplemented: Read as ‘0’
bit 3
WRT3: Write Protection bit
(1)
1
= Block 3 (006000-007FFFh) not write-protected
0
= Block 3 (006000-007FFFh) write-protected
bit 2
WRT2: Write Protection bit
(1)
1
= Block 2 (004000-005FFFh) not write-protected
0
= Block 2 (004000-005FFFh) write-protected
bit 1
WRT1: Write Protection bit
1
= Block 1 (002000-003FFFh) not write-protected
0
= Block 1 (002000-003FFFh) write-protected
bit 0
WRT0: Write Protection bit
1
= Block 0 (000200-001FFFh) not write-protected
0
= Block 0 (000200-001FFFh) write-protected
Note 1: Unimplemented in PIC18FX48 devices; maintain this bit set.
Legend:
R = Readable bit
P = Programmable bit
U = Unimplemented bit, read as ‘0’
-n = Value when device is unprogrammed
u = Unchanged from programmed state
R/P-1
R/P-1
R-1
U-0
U-0
U-0
U-0
U-0
WRTD
WRTB
WRTC
—
—
—
—
—
bit 7
bit 0
bit 7
WRTD: Data EEPROM Write Protection bit
1
= Data EEPROM not write-protected
0
= Data EEPROM write-protected
bit 6
WRTB: Boot Block Write Protection bit
1
= Boot Block (000000-0001FFh) not write-protected
0
= Boot Block (000000-0001FFh) write-protected
bit 5
WRTC: Configuration Register Write Protection bit
1
= Configuration registers (300000-3000FFh) not write-protected
0
= Configuration registers (300000-3000FFh) write-protected
Note:
This bit is read-only and cannot be changed in user mode.
bit 4-0
Unimplemented: Read as ‘0’
Legend:
R = Readable bit
P = Programmable bit
U = Unimplemented bit, read as ‘0’
-n = Value when device is unprogrammed
u = Unchanged from programmed state